Treasure the friendship　

As a human being living in the society, one can hardly do without friends. In my opinion, friendship is so essential for a man that it is an invaluable thing which even money can not buy.
Friends are willing to share the happiness and the sadness with u, for example, when u are happy, it is your friends who come to share the joy with u; when u are sad, u are eager to find a person to pour out all yr troubles, then u can resort to yr friends; when u are in trouble, it is yr friends who lend u a hand, therefore, you can derive much pleasure from communicating with yr friends.
In our daily life, there is no better mirror than a real friend who can point out yr faults frankly and helps u to overcome it as soon as possible. When u r successful, yr friends can remind u of keeping modest in front of the beautiful flowers and the thundering claps, moreover, when u r defeated, yr friends keep encouraging u and helping u out while others just throw a scornful smile to u.
Substantial evidence pointed to the fact that every successful man may achieve nothing without the friends’ help. Many a great scientist owed his success to the cooperation with his friends. In 1962, Waston and click, who are the best friends, won the Nobel prize on the biology .Waston is a chemist and Click is a biologist ,with their cooperation they discovered that DNA which is the biotic genetic material has a double coiled spiral structure, which upgraded the biological science research from the cellular level to molecular level .Maybe the era of molecular biology would be still far away without the exchange of different academic subjects based on friendship between Waston and click.
Another, as we all know, with the help of the intimate friend Engles , Marx who is a great proletariat revolutionist and a communism pioneer completed the book <Manifesto of the Communist Party> which is the immortal masterpiece in the long river of human history, even Marx spoke highly of the deep friendship had played a great role in his success.
As far as I am concerned, only the friends can treat u with a heart full of integrity, therefore, friendship is an invaluable thing which is worth cherishing for a lifetime in the world.

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